20/20 Granny shows Calum where to position toys in the shop.
19/20 Preparing a fruit salad, Calum needs half a melon, a quarter of a banana and 10 grapes.
18/20 Granny shows Calum how to make a pattern using cubes, cylinders, spheres and cones.
17/20 Catriona needs 30 paint brushes. Calum gets the job of dividing them into five pots.
16/20 While tidying his CDs, Calum notices he's dividing his collection into groups of three.
15/20 Children's mathematics series.
14/20 Children's mathematics series. Calum uses the two times table to count his badges.
13/20 Ceit shows Calum how to make a graph to represent ten boxes.
12/20 Calum has to satisfy a customer who wants 1kg of nuts divided equally into four bags.
11/20 Ceit and Calum receive some new toys and set about measuring them.
10/20 Ceit explains the characteristics of 3D shapes including faces, corners and edges.
9/20 As workmen make appointments to visit the shop, Calum makes a note of when they're due.
8/20 Ceit reveals the value of coins and Calum gets to add coins together.
7/20 Calum works out how much change to give customers from 20p.
6/20 Ceit shows Calum different ways of adding two numbers together to make twenty.
5/20 Calum gets help filling cups and bowls with water.
4/20 Granny Ceit explains to Calum the names of all the different shapes in the shop.
3/20 Calum tries to remember the order of the days of the week.
2/20 Children's mathematics series. Subtractions from ten.
1/20 Children's mathematics series. Different ways of adding up to ten.